<!DOCTYPE html>
<html lang="en">
<head>
	<meta charset="UTF-8">
	<title>Force</title>
	<script src="../libs/d3.v4.js"></script>
	<style>
		circle{
			r:20;
			fill:green;
			stroke: #ccc;
		}
		.links{
			stroke:steelblue;
		}
	</style>
</head>
<body>
	<svg>
		<defs>
    	<marker id="marker" markerWidth="10" markerHeight="10" refX="0" refY="4" orient="auto" markerUnits="strokeWidth">
        	<path d="M 0 0 8 4 0 8Z" style="fill:steelblue;"/>
    	</marker>
		</defs>
	</svg>
	<script src="./index.js"></script>
</body>
</html>